NTSB Identification: LAX84IA351.
The docket is stored on NTSB microfiche number 27126.
Scheduled 14 CFR UNITED AIRLINES
Incident occurred Sunday, June 10, 1984 in LOS ANGELES, CA
Probable Cause Approval Date: 08/30/1994
Aircraft: MCDONNELL DOUGLAS DC-10-10, registration: N1806U
Injuries: 212 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

THE PILOTS WERE UNABLE TO RETRACT THE RIGHT WING SPOILERS AFTER TAKEOFF, SO THEY RETURNED TO THE DEPARTURE AIRPORT FOR AN UNEVENTFUL LANDING. AN INSPECTION REVEALED RUST & DEBRIS IN THE AREA OF THE BELLCRANK, WHICH PREVENTED THE #1, #4 & #5 RGT HAND SPOILERS FROM RETRACTING. THE SPOILERS REMAINED EXTENDED 4 TO 5 INCHES.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

FLT CONTROL SYST,WING SPOILER SYSTEM..CORRODED

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

FLT CONTROL SYST,WING SPOILER SYSTEM..MOVEMENT RESTRICTED

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